| Title | Till composition across the Rae craton south of Wager Bay, Nunavut: results from the Geo-Mapping Frontiers' Tehery-Cape Dobbs project |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | McMartin, I ;
Wodicka, N; Bazor, D; Boyd, B |
| Source | Geological Survey of Canada, Open File 7417, 2013, 31 pages, https://doi.org/10.4095/293307  Open Access |
| Links | Canadian Database of Geochemical Surveys, downloadable
files
|
| Links | Banque de données de levés géochimiques du Canada,
fichiers téléchargeables
|
| Year | 2013 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| File format | rtf; pdf; xls; jpg |
| Province | Nunavut |
| NTS | 46D/05; 46D/12; 46D/13; 46D/14; 56A; 56B; 56C/01; 56C/02; 56C/07; 56C/08; 56C/09; 56C/10; 56C/15; 56C/16; 56F/01; 56F/02; 56F/07; 56F/08; 56F/09; 56F/10; 56F/15; 56F/16; 56G/01; 56G/02; 56G/03; 56G/04;
56G/05; 56G/06; 56G/07; 56G/08; 56G/09; 56G/10; 56G/11; 56G/12; 56H/01; 56H/02; 56H/03; 56H/04; 56H/05; 56H/06; 56H/07; 56H/08; 46E/03; 46E/04 |
| Area | Kazan Shield; Wager Bay |
| Lat/Long WENS | -93.0000 -87.0000 65.8333 64.0000 |
| Subjects | surficial geology/geomorphology; economic geology; geochemistry; tills; till analyses; till samples; glacial deposits; dispersal patterns; ice transport directions; sediment transport; indicator
elements; olivine; chromite; diopside; pyrope; till geochemistry; Cenozoic; Quaternary |
| Illustrations | location maps; plots |
| Program | GEM: Geo-mapping for Energy and Minerals Geomapping for Energy & Minerals (GEM) - Geo-mapping Frontiers |
| Released | 2013 12 16 |
| Abstract | This report presents the field database and analytical results from the 2012 till sampling campaign of the GEM Geo-mapping Frontiers' Tehery-Cape Dobbs project. Pebble lithologies, dominated by felsic
to intermediate intrusive rocks with minor metavolcanic and metasedimentary rocks, indicate short glacial transport distances and local provenance, likely linked to proximity to the Keewatin Ice Divide during the last glaciation. Forsteritic olivine
grains, locally coincident with mantle-derived indicator minerals (chromite, Cr-diospide, Cr-pyrope), are most abundant south of the kimberlite field discovered by Peregrine Diamonds Ltd. and form a possible fan-shaped dispersal pattern that extends
80 km, parallel to a strong southeast ice-flow recorded south of the Keewatin Ice Divide. Potential sources for the olivine grains include olivine-rich crustal rocks or multiple kimberlite bodies. A supracrustal belt in the central portion of the map
area shows the greatest potential for base and precious metal mineralization as highlighted by anomalous values in Ag, Cu, Bi, Au, and other metals in till samples collected near a sulphide gossan within the belt. |
| Summary | (Plain Language Summary, not published)
This publications reports the results of surficial geology field observations and composition of glacial sediment samples collected in 2012 across the
Rae craton south of Wager Bay in mainland Nunavut. The work was undertaken to provide new geological knowledge of the composition of surficial materials left by the retreat of the last glaciers. It will help evaluate resource potential of some of
the most remote and poorly understood regions of Canada¿s north. This work was conducted under the Geo-Mapping Frontiers¿ Tehery project at the Geological Survey of Canada, as part of Natural Resources Canada¿s Geo-mapping for Energy and Minerals
(GEM) Program. |
| GEOSCAN ID | 293307 |
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